I have no idea why but when I went to check on the duckling I noticed something was wrong with one of their legs I will put up a pic soon His knees are pale and his legs are bent inward causing problems while he walks he has a hard time getting comfy at night while he goes to sleep a can't move as fast
It may be a slipped tendon - there are things you can do about that if you act early enough. Here is a site that may help. Also consider posting on the Duck Forum as well. https://sites.google.com/a/poultrypedia.com/poultrypedia/poultry-podiatry I would be sure to give some gro gel or chick saver or other vitamins - that can affect leg development and nervous system development.